I fail to see why race, ethnicity or sex should have anything to do with a presidential election. A president should be elected because of his or her competence at running a country, and nothing else.

For example in the first post in this thread; "there's also a black man running". That tells me absolutely nothing, except his skin colour and sex, which are the least significant things i would take into consideration when voting. When I vote, I vote for a good politician, not a white guy, black guy, asian guy or whatever else.